Second Stop and Sbottom Searches with a Stealth Stop

Understand

The top squarks (stops) may be the most wanted particles after the Higgs boson discovery.

• The searches for the lightest stop have put strong constraints on its mass.
• However, there is still a search gap in the low mass region if the spectrum of the stop and the lightest neutralino is compressed.
• In that case, it may be easier to look for the second stop since naturalness requires both stops to be close to the weak scale.